发明名称 |
DEVICE FOR CONTROLLING PRESSURE IN CONVERTER OF CONVERTER WASTE GAS TREATING DEVICE |
摘要 |
PURPOSE:To control adequately the pressure of a converter waste gas in a device for recording and treating said waste gas by detecting the pressure in the converter with a detector consisting of plural oscillators according to the fluctuation of the gaseous pressure in the converter and adjusting the damper of a secondary dust collector. CONSTITUTION:The raw material 2 such as molten iron in the converter 1 is refined by top blowing of pure oxygen from a top blowing lance 3. The high-temp. waste gas contg. CO and iron oxide dust is generated in this stage and is recovered by a hood 6. The dust is recovered in a primary dust collector 9 and the secondary dust collector 10. The CO-contg. waste gas is fed by an induced draft fan 13 to a CO utilizing device. The gaseous pressure in the converter is considerably fluctuated by the degree of hermetic sealing between the lower skirt 4 of the hood 6 and the converter outlet and therefore said pressure is detected by plural oscillators 5-1-5-n having different ranges and is fed to a control device 7 for the pressure in the converter. The opening degree of the damper 11 of the collector 10 is controlled by an electro- hydraulic controller 12 in accordance with the command from the device 7 to control the gaseous pressure in the converter to an adequate value, by which the converter operation is stabilized. |
申请公布号 |
JPS6173809(A) |
申请公布日期 |
1986.04.16 |
申请号 |
JP19840195815 |
申请日期 |
1984.09.20 |
申请人 |
NIPPON STEEL CORP;FUJI ELECTRIC CO LTD |
发明人 |
SAKANASHI NOBUYASU;YOSHIDA TORU;KAWAI SEIJI;HACHIGA KATSUMI |
分类号 |
C21C5/38;F27D17/00 |
主分类号 |
C21C5/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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